Patent US2523985A successfully refreshed from Google Patents.
Patent US777560A successfully refreshed from Google Patents.
US777560A
Expired / Lapsed
US
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Process of forming pipe.
Assignee: ANTHONY HUHN
•
Filing: 1904-01-19
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Granted: 1904-12-13
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Expires: 1924-01-19
Abstract
No abstract record available.
Inventors
- 👤 Charles B Stravs
- 👤 John N Jager
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:20
CPC Classifications
B; B22; B22D; B22D13/00; B22D13/10; B22D13/101; B22D13/105
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1907-12-13 | 1908-06-13 | 1908-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1911-12-13 | 1912-06-13 | 1912-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1915-12-13 | 1916-06-13 | 1916-12-13 | $7700.00 | Window Closed / Lapsed |